| Computer Code: |
RS1B |
Preferred Map Code: |
symb |
| Status Code: |
Full |
| Age range: |
Devensian Stage (QD)
— Devensian Stage (QD) |
| Lithological Description: |
Sand and sandy gravel, locally clayey. Gravel component is predominantly subangular flint with subordinate debris of chert, polished quartz grains, and larger fragments of pebbly ferruginous sandstone derived from Lower Cretaceous sequences to the north. |
| Definition of Lower Boundary: |
Unconformably overlies Lower Cretaceous bedrock. |
| Definition of Upper Boundary: |
Ground surface. |
| Thickness: |
Generally up to 4m, but locally up to 10m. |
| Geographical Limits: |
Chichester and Bognor district. |
| Parent Unit: |
Sussex Rother Terrace Deposits, 1 Member (RS1)
|
| Previous Name(s): |
River Terrace Deposits, 1b (Rother, Sussex) [Obsolete Name and Code: Use RS1B]
(-3647)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Valley of the River Rother, Sussex. Aldiss, 2002. |
| Reference(s): |
| Aldiss, D T. 2002. Geology of the Chichester and Bognor district. Sheet Explanation of the British Geological Survey, 1:50 000 Series Sheet 317 and Sheet 332 (England and Wales). |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E317
E332
|
